Custom Food-Grade Silicone O Ring Seal | Waterproof Soft Rubber Gasket 20–90 Shore A | OEM Spare Parts Manufacturer

Our custom food-grade silicone O ring seal is designed for waterproof sealing applications requiring flexible compression, stable recovery and reliable material performance.

With a customizable hardness range of 20–90 Shore A, the O-ring can be tailored to meet specific application needs—from ultra-soft compression-fit gaskets for delicate sealing tasks to high-hardness rings designed for mechanical stress and long service life. Our materials offer excellent resistance to heat, cold, steam, oils, and common cleaning chemicals, making them ideal for harsh environments or high-frequency operations.

As a professional silicone molding manufacturer, SiliconePlus utilizes LSR liquid silicone molding, compression molding, and injection molding to guarantee precise dimensions, smooth surface finish, and outstanding sealing stability. Every gasket is produced under strict quality control and can be customized in color, hardness, size, and tolerance to match your exact engineering requirements.

Each O-ring is produced using 100% virgin silicone, offering superior elasticity, anti-aging properties, and long-lasting sealing reliability. With customizable hardness levels, colors, and dimensions, it fits a wide range of machines, valves, pumps, kitchen appliances, medical devices, and industrial equipment.

The gasket delivers stable sealing even under high pressure or continuous operation, preventing liquid leakage and protecting internal components—ideal for equipment that must maintain strict hygiene and safety standards.

Our silicone rubber meets ROHS / CE / LFGB / FDA requirements, making it suitable for:

Support includes:

Custom hardness (20A–90A)

Any size / shape / structure

Soft, flexible, or high-rigidity design

Transparent or colored silicone

Logo, texture, overmolding options

Silicone’s natural resistance ensures performance in demanding conditions:

High & low temperature: –40°C to 230°C

At Siliconeplus, we combine advanced LSR injection molding technology, strict quality control, and 15+ years of silicone manufacturing expertise.

You benefit from:

Professional engineering support

Fast sampling & stable mass production

Food-grade & medical-grade certification

Factory-direct pricing

Reliable global shipping

Our Custom Silicone Rubber O-Ring Seal offers the perfect balance of durability, flexibility, and safety for industries that demand reliable sealing performance. With full customization, food-grade materials, and global compliance certifications, this gasket is engineered to support long-term, stable operation in your equipment.

Partnering with Siliconeplus means gaining a trusted silicone manufacturing expert—delivering precision, consistency, and the quality assurance you need to accelerate your product development and strengthen your supply chain.

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